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Which of the following is not similar between a first order and pseudo first order reaction?
The rate law for inversion of cane sugar is R=k [C12H22O11][H2O]. Find the concentration of sucrose if the rate of the reaction is 0.032 s-1 and rate constant k=0.005.
The rate constant ‘k for pseudo first order reaction is (a) 2.303log C C t (b) 2.303 C log t C (c) 2.303log C C t (d) C 2.303log t C Ans. (d) Sol. The rate constant ‘k’ for pseudo first order reaction is C 2.303log …
Pseudo order reaction A B C (a) (b) (c) (d)
First order reaction C. Thermal decomposition of HI on gold surface
Match the terms of Column I with Column II and choose the correct option from the codes given below. Column I Column II A. Inversion of cane sugar 1. Zero order reaction B. Decomposition of N2O5
Assertion (A) The reaction mentioned in Above ques. behaves as pseudo first order reaction. Reason (R) Change in the concentration of H2O is negligible.
Consider the following equation, H CH COOC H H O CH COOH C H OH -> t = 0 0.01 mol 10 mol 0 mol 0 mol t 0 mol 9.9 mol 0.01 mol 0.01 mol I.The concentration of water does not get altered much during the course of the…
What is true about pseudo first order reaction?
The value of rate constant of a pseudo first order reaction does not
Inversion of cane sugar in dilute acid is an example of
When one reactant is present in large excess in a chemical reaction between two substances, then the reaction is known as
10g of a radioactive isotope is reduced to 1.25 g in 12 yr. Calculate the half-life period of the isotope.
Half-life period of a first order reaction is 10 min. What percentage of the reaction will be completed in 100 min?
For a hypothetical reaction, A P -> the rate constant is 0.12 s-1. Which of the following statements(s) is/are correct, if [R]0 is the initial concentration? (a) 0 1/2 R t 0.12 12 x (b) 1/2 t 2 0.12 R (c) 1/2 0.69…
Suppose P is the initial concentration of reaction, then the half-life period of a reaction of nth order is proportional to (a) (b) (c) (d) Ans. (a) Sol. Relation between half-life period of a reaction and initial con…
A first order reaction is found to have a rate constant, k = 4.2 × 10-12 s-1. Find the half-life of the reaction
Which of the following statement(s) is/are true?
Expression for the half-life of zero order reaction is given as (a) 1/2 R t 2k (b) 0 1/2 R t 2k (c) 1/2 0.693 t k (d) 1/2 0.301 t k Ans. (b) Sol. 0 1/2 R t 2k For a zero order reaction.
Value of 1/2 t for first order reaction is (a) (b) (c) (d) Ans. (a) Sol. Value of t1/2 for first order reaction is 0.693 k
1/2 t for a zero order reaction is …(I)… proportional to the initial concentration of the reactants and …(II)… proportional to the rate constant. Choose the correct words to fill up the blanks (I) and (II) respectivel…
…A… of the reaction is the time in which the concentration of a reactant is reduced to one half of its initial concentration. Choose the appropriate word to fill ‘A’ from the options given below.
For a given reaction half life period was found to be directly proportional to the initial concentration of the reactant. The order is
What will be the half-life of the first order reaction for which the value of rate constant is 200 s–1?
The half-life period of a first order reaction is